
W2 REDOX REACTION
Authored by Salbiah Mat Ludin
Chemistry
7th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the term 'redox' combine?
Reduction and reaction
Oxidation and reduction reaction
Reduction and oxidation
Oxidation and reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the oxidation number during a redox reaction?
It remains the same
It changes for specific elements
It decreases for all elements
It increases for all elements
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a redox reaction, what does oxidation involve?
Gaining electrons
Losing electrons
Combining with oxygen
No change in electrons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of an atom in its free state?
Can be positive, negative, or zero
Always zero
Always negative
Always positive
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an oxidizing agent?
A substance that receives electrons
A substance that donates electrons
A substance that has a negative charge
A substance that has a positive charge
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a reducing agent?
A substance that donates electrons
A substance that has a positive charge
A substance that has a negative charge
A substance that receives electrons
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of combining oxidation and reduction equations?
Balanced equation
Chemical equation
Molecular equation
Ionic equation
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